A planet transmits its power to the signs owned by it. For instance, Jupiter owns Sagittarius and Pisces. If Jupiter is exalted, then Sagittatariius and Pisces becomes powerful. Not only the signs owned by the planet, but the Planets posited in these signs also become powerful. Dispositor is the planet who is the lord of the sign. For instance, if Mars is in Cancer, Cancer is owned by the Moon and hence Moon becomes the dispositor of Mars.

Exaltation Dispositor

The planet who gets exalted in a sign is called the Exaltation dispositor. For instance, Jupiter get exalted in Cancer. Hence the exaltation dispositor of Cancer is Jupiter and its dispositor, Moon!

Cancellation of Debilitation (Neechabhanga)

We know that planets gets exalted in certain signs and debilitated in certain signs. The debilitation sign is 180 degrees from the exaltation sign.
Debilitation is cancelled due to 2 factors:

1. When the dispositor is in a quadrant ( 1,4,7 & 10 houses ) either from the Ascendant or the Lunar Ascendant.

2. When the exaltation dispositor is in a quadrant either from the Ascendant or the Lunar Ascendant.

This Cancellation of Debilitation is considered to be a powerful Regal Yoga or Conjunction (Raja Yoga).

Planets in Quadrants

1, 4, 7, 10 houses are called quadrants. 1, 5, 9 houses are called Trines. Benefic planets like Jupiter, Venus & Mercury are considered to be powerful when they are posited in quadrants. It is said that that these 3 natural benefics in quadrants can destroy scores of afflictions!

If natural malefics own quadrants, they become benefics. Mars& Saturn are good as owners of quadrants. On the other hand, if natural benefics like Venus and Jupiter own quadrants, they are vitiated by Quadrangular ownership. They become functional malefics.